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https://www.readbyqxmd.com/read/28107013/quaternary-n-2-pyridyl-dabco-salts-one-pot-in-situ-formation-from-pyridine-n-oxides-and-reactions-with-nucleophiles-a-mild-and-selective-route-to-substituted-n-2-pyridyl-n-ethylpiperazines
#1
Dmitry I Bugaenko, Marina A Yurovskaya, Alexander V Karchava
The N-(2-pyridyl)-N'-ethylpiperazines are important structural motifs in several medicinally relevant compounds. Known synthetic methods toward these structures are multistep and generally based on the SNAr-chemistry; their applicability is significantly limited to substrates containing electron-withdrawing groups. Here we describe a new methodology for a rapid and modular access to this privileged scaffold. Importantly, the developed protocol proved to be very general and efficient for the substrates containing substituents of different electronic nature...
January 20, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28106116/overexpression-of-mosm1-encoding-for-an-immunity-inducing-protein-from-magnaporthe-oryzae-in-rice-confers-broad-spectrum-resistance-against-fungal-and-bacterial-diseases
#2
Yongbo Hong, Yayun Yang, Huijuan Zhang, Lei Huang, Dayong Li, Fengming Song
Potential of MoSM1, encoding for a cerato-platanin protein from Magnaporthe oryzae, in improvement of rice disease resistance was examined. Transient expression of MoSM1 in rice leaves initiated hypersensitive response and upregulated expression of defense genes. When transiently expressed in tobacco leaves, MoSM1 targeted to plasma membrane. The MoSM1-overexpressing (MoSM1-OE) transgenic rice lines showed an improved resistance, as revealed by the reduced disease severity and decreased in planta pathogen growth, against 2 strains belonging to two different races of M...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28104552/a-novel-salt-tolerant-bacterial-consortium-for-biodegradation-of-saline-and-recalcitrant-petrochemical-wastewater
#3
Mehdi Ahmadi, Sahand Jorfi, Raheleh Kujlu, Shokouh Ghafari, Reza Darvishi Cheshmeh Soltani, Nematollah Jaafarzadeh Haghighifard
Treatment of a saline petrochemical wastewater with BOD5/COD ratio of less than 0.1 was investigated using a consortium consisted of three isolated salt-tolerant bacteria namely, Kocuria turfanesis, Halomonas alkaliphila and Pseudomonas balearica. Selected bacteria were isolated from petrochemical wastewater containing mineral salt mediums of 3% salinity. A lab-scale activated sludge bioreactor was used for startup in batch mode operation and after obtaining the MLSS concentration of about 3000 mg/L, the operation was changed to continuous flow mode to determine the biokinetic coefficients under different organic loading rates of 0...
January 16, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28102910/arabidopsis-phosphoinositide-specific-phospholipase-c-4-negatively-regulates-seedling-salt-tolerance
#4
Keke Xia, Bo Wang, Jiewei Zhang, Yuan Li, Hailian Yang, Dongtao Ren
Previous physiological and pharmacological studies have suggested that the activity of phosphoinositide-specific phospholipase C (PI-PLC) plays an important role in regulating plant salt stress responses by altering the intracellular Ca(2+) concentration. However, the individual members of plant PLCs involved in this process need to be identified. Here, the function of AtPLC4 in the salt stress response of Arabidopsis seedlings was analyzed. plc4 mutant seedlings showed hyposensitivity to salt stress compared with Col-0 wild-type seedlings, and the salt hyposensitive phenotype could be complemented by the expression of native promoter-controlled AtPLC4...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28102497/regulated-partitioning-of-fixed-carbon-14-c-sodium-na-potassium-k-and-glycine-betaine-determined-salinity-stress-tolerance-of-gamma-irradiated-pigeonpea-cajanus-cajan-l-millsp
#5
Pankaj Kumar, Vasundhara Sharma, Chobhe Kapil Atmaram, Bhupinder Singh
Soil salinity is a major constraint that limits legume productivity. Pigeonpea is a salt sensitive crop. Seed gamma irradiation at a very low dose (2.5 Gy) is known to enhance seedling establishment, plant growth and yield of cereals and other crops. The present study conducted using two genetically diverse varieties of pigeonpea viz., Pusa-991 and Pusa-992 aimed at establishing the role of pre-sowing seed gamma irradiation at 0, 0.0025, 0.005, 0.01, 0.02, 0.05 and 0.1 kGy on plant growth, seed yield and seed quality under salt stress at 0, 80 and 100 mM NaCl (soil solution EC equivalent 1...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28101816/retraction-note-to-brassica-rna-binding-protein-erd4-is-involved-in-conferring-salt-drought-tolerance-and-enhancing-plant-growth-in-arabidopsis
#6
Archana N Rai, Srinath Tamirisa, K V Rao, Vinay Kumar, P Suprasanna
No abstract text is available yet for this article.
January 18, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28097484/different-physiobiochemical-and-transcriptomic-reactions-of-rice-oryza-sativa-l-cultivars-differing-in-terms-of-salt-sensitivity-under-salinity-stress
#7
Mojtaba Kordrostami, Babak Rabiei, Hassan Hassani Kumleh
Salinity stress is the most important and common environmental stresses throughout the world, including Iran. The aim of this study was to investigate the expression of several important genes involved in the salinity tolerance of the rice cultivars differing in salt sensitivity. In this research, the expression of four mitochondrial genes, H2O2, malondialdehyde (MDA), proline, sodium, potassium and superoxide dismutase (SOD), was measured in Iranian rice cultivars and two well-known international varieties as checks in response to 100 mM salt stress...
January 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28096758/effects-of-acute-ingestion-of-a-pre-workout-dietary-supplement-with-and-without-p-synephrine-on-resting-energy-expenditure-cognitive-function-and-exercise-performance
#8
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Elfego Galvan, Ryan Dalton, Dillon Walker, Christopher Rasmussen, Peter S Murano, Mike Greenwood, Richard B Kreider
BACKGROUND: The purpose of this study was to examine the effects of acute ingestion of a pre-workout dietary supplement (PWS) with and without p-synephrine (S) on perceptions of readiness to perform, cognitive function, exercise performance, and markers of safety. METHODS: In a randomized, double-blind, and counterbalanced manner; 25 healthy and recreationally active male and female participants ingested a flavored maltodextrin placebo (PLA), a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg) with 2 g of maltodextrin and flavoring; or, the PWS with Citrus aurantium (PWS + S) extract standardized for 30% p-synephrine (20 mg)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28093607/osmopriming-induced-salt-tolerance-during-seed-germination-of-alfalfa-most-likely-mediates-through-h2o2-signaling-and-upregulation-of-heme-oxygenase
#9
Rayhaneh Amooaghaie, Fatemeh Tabatabaie
The present study showed that osmopriming or pretreatment with low H2O2 doses (2 mM) for 6 h alleviated salt-reduced seed germination. The NADPH oxidase activity was the main source, and superoxide dismutase (SOD) activity might be a secondary source of H2O2 generation during osmopriming or H2O2 pretreatment. Hematin pretreatment similar to osmopriming improved salt-reduced seed germination that was coincident with the enhancement of heme oxygenase (HO) activity. The semi-quantitative RT-PCR confirmed that osmopriming or H2O2 pretreatment was able to upregulate heme oxygenase HO-1 transcription, while the application of N,N-dimethyl thiourea (DMTU as trap of endogenous H2O2) and diphenyleneiodonium (DPI as inhibitor of NADPHox) not only blocked the upregulation of HO but also reversed the osmopriming-induced salt attenuation...
January 16, 2017: Protoplasma
https://www.readbyqxmd.com/read/28092986/a-review-of-the-treatment-of-primary-orthostatic-hypotension
#10
Genevieve M Hale, Jose Valdes, Michael Brenner
OBJECTIVE: To review the efficacy and safety of pharmacological and nonpharmacological strategies used to treat primary orthostatic hypotension (OH). DATA SOURCES: A literature review using PubMed and MEDLINE databases searching hypotension, non-pharmacological therapy, midodrine, droxidopa, pyridostigmine, fludrocortisone, atomoxetine, pseudoephedrine, and octreotide was performed. STUDY SELECTION AND DATA EXTRACTION: Randomized or observational studies, cohorts, case series, or case reports written in English between January 1970 and November 2016 that assessed primary OH treatment in adult patients were evaluated...
January 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28088165/genomic-characterization-of-ensifer-aridi-a-proposed-new-species-of-nitrogen-fixing-rhizobium-recovered-from-asian-african-and-american-deserts
#11
Antoine Le Quéré, Nisha Tak, Hukam Singh Gehlot, Celine Lavire, Thibault Meyer, David Chapulliot, Sonam Rathi, Ilham Sakrouhi, Guadalupe Rocha, Marine Rohmer, Dany Severac, Abdelkarim Filali-Maltouf, Jose-Antonio Munive
BACKGROUND: Nitrogen fixing bacteria isolated from hot arid areas in Asia, Africa and America but from diverse leguminous plants have been recently identified as belonging to a possible new species of Ensifer (Sinorhizobium). In this study, 6 strains belonging to this new clade were compared with Ensifer species at the genome-wide level. Their capacities to utilize various carbon sources and to establish a symbiotic interaction with several leguminous plants were examined. RESULTS: Draft genomes of selected strains isolated from Morocco (Merzouga desert), Mexico (Baja California) as well as from India (Thar desert) were produced...
January 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28078521/exogenously-applied-poly-%C3%AE-glutamic-acid-alleviates-salt-stress-in-wheat-seedlings-by-modulating-ion-balance-and-the-antioxidant-system
#12
Zhengfei Guo, Na Yang, Changhua Zhu, Lijun Gan
Salt stress is a main abiotic stress that limits agricultural productivity in many parts of the world. To investigate whether poly-γ-glutamic acid (γ-PGA) can alleviate the negative effects of salt stress on wheat, a foliar application of 400 mg/L γ-PGA was applied to wheat seedlings, which were then subjected to 150 mM NaCl. Our results showed that after application of γ-PGA, the plant height, the plant weight, and the antioxidant enzymes including superoxide dismutase, peroxidase, and catalase were significantly increased compared with the treatment of 150 mM NaCl alone...
January 11, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28074873/the-nac-type-transcription-factor-osnac2-regulates-aba-dependent-genes-and-abiotic-stress-tolerance-in-rice
#13
Jiabin Shen, Bo Lv, Liqiong Luo, Jianmei He, Chanjuan Mao, Dandan Xi, Feng Ming
Plants can perceive environmental changes and respond to external stressors. Here, we show that OsNAC2, a member of the NAC transcription factor family, was strongly induced by ABA and osmotic stressors such as drought and high salt. With reduced yields under drought conditions at the flowering stage, OsNAC2 overexpression lines had lower resistance to high salt and drought conditions. RNAi plants showed enhanced tolerance to high salinity and drought stress at both the vegetative and flowering stages. Furthermore, RNAi plants had improved yields after drought stress...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073037/amino-acid-chelated-iron-versus-an-iron-salt-in-the-treatment-of-iron-deficiency-anemia-with-pregnancy-a-randomized-controlled-study
#14
Ghada Abdel Fattah Abdel Moety, Ahmed Mahmoud Ali, Reham Fouad, Wafaa Ramadan, Doaa Shafie Belal, Hisham Mamdouh Haggag
OBJECTIVE: The aim of this study was to compare the efficacy and tolerability of iron amino acid chelate (IAAC) and ferrous fumarate (FF) in treatment of iron deficiency anemia (IDA) with pregnancy. STUDY DESIGN: A total of 150 pregnant women having iron deficiency anemia (IDA) were randomized to receive either IAAC or FF for 12 weeks. Hemoglobin, red cell indices, serum iron, and serum ferritin were measured at baseline and then 4, 8, and 12 weeks after treatment...
January 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28072419/an-acid-tolerant-ammonia-oxidizing-%C3%AE-proteobacterium-from-soil
#15
Masahito Hayatsu, Kanako Tago, Ikuo Uchiyama, Atsushi Toyoda, Yong Wang, Yumi Shimomura, Takashi Okubo, Futoshi Kurisu, Yuhei Hirono, Kunihiko Nonaka, Hiroko Akiyama, Takehiko Itoh, Hideto Takami
Nitrification, the microbial oxidation of ammonia to nitrate via nitrite, occurs in a wide range of acidic soils. However, the ammonia-oxidizing bacteria (AOB) that have been isolated from soil to date are acid-sensitive. Here we report the isolation and characterization of an acid-adapted AOB from an acidic agricultural soil. The isolated AOB, strain TAO100, is classified within the Gammaproteobacteria based on phylogenetic characteristics. TAO100 can grow in the pH range of 5-7.5 and survive in highly acidic conditions until pH 2 by forming cell aggregates...
January 10, 2017: ISME Journal
https://www.readbyqxmd.com/read/28070891/a-rop2-ric1-pathway-fine-tunes-microtubule-reorganisation-for-salt-tolerance-in-arabidopsis
#16
Changjiang Li, Hanmei Lu, Wei Li, Ming Yuan, Ying Fu
The biphasic reorganisation of microtubules induced by salt stress is required for Arabidopsis survival under high salinity conditions, however, the underlying regulatory mechanism is poorly understood. In this study, we demonstrate that microtubule associated protein RIC1 has a negative effect on the microtubule reassembly phase under salt stress, and activated ROP2 contributes to the microtubule reorganisation at least partially by releasing the inhibitory effect of RIC1 on microtubule recovery. Our finding not only reveals a new regulatory mechanism for biphasic microtubule reorganisation under salt stress but also the importance of ROP signaling for salinity tolerance in Arabidopsis...
January 9, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28070277/distinct-patterns-of-natural-selection-in-na-h-antiporter-genes-in-populus-euphratica-and-populus-pruinosa
#17
Yuxia Wu, Kuibin Meng, Xiaohui Liang
Salt tolerance genes constitute an important class of loci in plant genomes. Little is known about the extent to which natural selection in saline environments has acted upon these loci, and what types of nucleotide diversity such selection has given rise to. Here, we surveyed genetic diversity in three types of Na(+)/H(+) antiporter gene (SOS, NhaD, and NHX, belonging to the cation/proton antiporter 1 family), which have well-characterized essential roles in plant salt tolerance. Ten Na(+)/H(+) antiporter genes and 16 neutral loci randomly selected as controls were sequenced from 17 accessions of two closely related members of the genus Populus, Populus euphratica and Populus pruinosa, section Turanga, which are native to northwest China...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28067589/novel-bioflocculant-produced-by-salt-tolerant-alkaliphilic-strain-oceanobacillus-polygoni-hg6-and-its-application-in-tannery-wastewater-treatment
#18
Jing Li, Yue-Qing Yun, Li Xing, Lei Song
The optimized production of MBF-HG6, which is a novel salt-tolerant alkaliphilic bioflocculant produced by Oceanobacillus polygoni with its application in tannery wastewater treatment was investigated in this study. It was found the optimal carbon source, nitrogen source, cation, and initial pH of the medium for bioflocculant production were starch, urea, Fe(2+), and pH 9.0, respectively. The best stability in the temperature range was from 0 to 80°C and the purified MBF-HG6 contained polysaccharides of 81...
January 9, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28065573/rapid-evolution-of-tolerance-to-road-salt-in-zooplankton
#19
Kayla D Coldsnow, Brian M Mattes, William D Hintz, Rick A Relyea
Organisms around the globe are experiencing novel environments created by human activities. One such disturbance of growing concern is the salinization of freshwater habitats from the application of road deicing salts, which creates salinity levels not experienced within the recent evolutionary history of most freshwater organisms. Moreover, salinization can induce trophic cascades and alter the structure of freshwater communities, but knowledge is still scarce about the ability of freshwater organisms to adapt to elevated salinity...
December 27, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/28064133/microalgae-cultivation-in-urban-wastewater-coelastrum-cf-pseudomicroporum-as-a-novel-carotenoid-source-and-a-potential-microalgae-harvesting-tool
#20
Bárbara Úbeda, José Ángel Gálvez, Mónica Michel, Ana Bartual
The aim of this work was to study the optimal growth and high value-added production of the microalgae Coelastrum cf. pseudomicroporum Korshikov cultivated in urban wastewater. It was observed that C. cf. pseudomicroporum grew ideally in this medium, acting as an efficient nutrient starver. Additionally, the obtained biomass increased carotenoid cell content after saltwater stress. The effects of light intensity and salt stress on its growth rate were analysed. The results showed that this alga can grow very fast using wastewater as culture medium, reaching maximum growth rates of 1...
December 30, 2016: Bioresource Technology
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